Samuel h



(No Model.)

S. H. JENKINS.

CABLE TRAMWAY.

Patented May 27 N. PETERS. Phnm-Lixhn m her, washin mn, D. C.

Ihvrrnn tarts SAMUEL H. JENKINS,

a'rnnr tribe.

OF NEXV YORK, N. Y.

CABLE TRAiViWAY.

SPECIFICATION forming part. of Letters Patent No. 299,394, dated May27,1884.

Application filed February 1S, 1884. (No model.)

To aZZ whom it may concern Be it known that I, SAMUEL H. JENKINS, acitizen of the United States, and a resident of New York, in the countyof New York and. State of New York, have invented certain new and usefulImprovements in Cable Tramways, of which the following is aspecification;

My invention relates especially to cable tramways employed fortransporting ore in suspended buckets or cars, and has for its objecttheprovision of a tramway which is particularly adapted for use inhilly, broken, or mountainous localities, being light, simple, cheap,and strong, and effective in operation.

My invention consists, essentially, of double supportingtrusses,constructed of planks or boards placed upon edge and secured together bybolts or nails, a double tie wire or rod running under each truss, thesaid tie-wires being held in position by suitable boards or planksrunning across between the parallel trusses connecting the same.

My invention further consists in a doubleheaded rail provided with anoffset between the heads, the same being so constructed as to beattached to the trusses or to string-pieces, and permit the flanges ofthe wheels of the carriers to pass between the rail-heads and thevertical side of the truss.

My invention further consists in a grip for engaging with thedriving-cable, one part of said grip being formed with the carrier-frameand the other part secured thereto by a bolt, all of which will behereinafter first fully de scribed, and then pointed out in the claims.

In the drawings, Figure 1 is a side elevation of my improved truss, andFig. 2 is a plan view thereof. Fig. 3 is a cross-sectional view of mycompleted tramway, showing all the parts in place. the carrier. Fig. 5is a vertical section through the grip, and Fig. 6 is a plan view of theportion of the grip formed with the carrier-fra-me.

Like letters of reference, wherever they occur, indicate correspondingparts in all the figures.

.A are the boards or planks out of which the truss is formed. Theseboards maybe of any desired thickness and length. In the drawings threethicknesses of board are shown; but two or more than three may be used,if found necessary. The boards A are so placed Fig. 4 is a frontelevation of I as to break the joints, and at each exterior joint thinmetal plates B are placed, through which bolts or screws 0 pass, to holdthe parts securely in place. Other nails or bolts are used wherever itis found necessary between said plates.

D are longitudinal tie wires or rods, passing from end to end of thetrussbeam, the extremities of the wire being secured to a block orcleat, E, as shown.

F are braces formed of plank, and engaging with the tie-wires and thebottom of each truss-beam. In placing said braces in position, thetie-wires are first secured at the extremities of the truss-beams, andthen the braces are sprung into place. A socket, f, secures said braceagainst displacement where it engages with the trussbeam, and a metalplate, f, is placed between the tie-wires and the brace at bottom. Thistruss possesses peculiar advantages. The separate parts maybetransported through a mountainous and broken country, where heavy beamscould not be moved, and when the parts are assembled for use thecompleted truss is of great strength and durability.

G are uprights engaging with a cross-piece, H, upon each extremitywhereof the trusses are mounted, said trusses being secured to pieces Hby means of bolts I, and braced against outward strain by means ofcross-wires J.

K is a doubleheaded rail, provided with a longitudinal offset, 70, whichrests against the side ofa string-piece or truss, where it is secured bymeans of bolts k. The advantages of this form of rail are obvious. Itmay be supported upon the side of a string-piece or truss of any width.As the heads stand away from the support, the flanges of the wheels of acarrier have sufficient room to move unobstructedly. The heads of therail may be brought closely together, and the rail and carrier made morecompact, materially reducing the weight and cost both of the rail andcarrier, while increasing the strength of the parts.

The carrier consists of a frame, L, having at top a double-flangedwheel, M, and atbottom two double-flanged wheels, N. A bar, Z,

extending downward from the frame, engages with a double hook, forsupporting the buckets P.

The grip for engaging with the operating- IOU cable R consists of astationary jaw, S, formed with the bar lof the carrier, the innersurface of said jaw conforming to the shape of the cable, and the bodythereof forming a segment of a circle, as illustrated in Fig. 6. S isthe movable jaw, conforming in shape to jaw S, but being provided with ascrew-threaded shank, s, which passes through bar Z and engages with anut, T, for compressing the jaws around the cable. In placing the latterin position, an elastic thimble, V, is put therearound at the pointwhere the cable is embraced by the grip, preventing abrading or wear ofthe wires of the cable.

Having now fully described my invention, what I claim as new therein,and desire to secure by Letters Patent, is-

1. In a tramway of the character herein specified, the series oftrusses, each consisting of two parallel beams formed of planks secureddirectly to each other, as set forth,and provided with longitudinaltie-wires, in combination with the braces located at right angles to thetruss-beams and tie-wires, and the cross brace-wires extending betweenthe trussbeams, substantially as shown and described.

or string-pieces, of a double-headed rail af- 2. The trusses formed ofplanks A, united by means of plates B and bolts 0, tie-wires D, securedto cleats E, and transversal braces F, substantially as shown anddescribed.

3. A double-headed rail, K, having an offset, 70, substantially as andfor the uses and purposes shown and described.

4. The combination, with supporting-trusses fixed to the outer facethereof, said rail being provided with an offset, is, substantially asshown and described.

5. The grip consisting of the stationary jaw formed upon thecarrier-bar, as set forth, in combination with the movable jaw bearingthe screw-threaded shank adapted and arranged to pass through thecarrier-bar and engage with a nut, substantially as shown and described.

Signed at New York, in the county of New York and State of New York,this 16th day of February, A. D. 1884.

SAMUEL H. JENKINS.

Witnesses: I

EUGENE N. ELIOT, A. M. PIERCE.

